Camera optical lens

ABSTRACT

The present invention includes a camera optical lens. The camera optical lens including, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The camera optical lens further satisfies specific conditions.

FIELD OF THE PRESENT DISCLOSURE

The present disclosure relates to optical lens, in particular to acamera optical lens suitable for handheld devices such as smart phonesand digital cameras and imaging devices.

DESCRIPTION OF RELATED ART

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but the photosensitivedevices of general camera lens are no other than Charge Coupled Device(CCD) or Complementary metal-Oxide Semiconductor Sensor (CMOS sensor),and as the progress of the semiconductor manufacturing technology makesthe pixel size of the photosensitive devices shrink, coupled with thecurrent development trend of electronic products being that theirfunctions should be better and their shape should be thin and small,miniature camera lens with good imaging quality therefor has become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. And, with the development oftechnology and the increase of the diverse demands of users, and underthis circumstances that the pixel area of photosensitive devices isshrinking steadily and the requirement of the system for the imagingquality is improving constantly, the five-piece, six-piece andseven-piece lens structure gradually appear in lens design. There is anurgent need for ultra-thin wide-angle camera lenses which have goodoptical characteristics and the chromatic aberration of which is fullycorrected.

BRIEF DESCRIPTION OF THE DRAWINGS

Many aspects of the exemplary embodiments can be better understood withreference to the following drawings. The components in the drawing arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure.

FIG. 1 is a schematic diagram of a camera optical lens in accordancewith a first embodiment of the present invention;

FIG. 2 shows the longitudinal aberration of the camera optical lensshown in FIG. 1;

FIG. 3 shows the lateral color of the camera optical lens shown in FIG.1;

FIG. 4 presents a schematic diagram of the field curvature anddistortion of the camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a camera optical lens in accordancewith a second embodiment of the present invention;

FIG. 6 presents the longitudinal aberration of the camera optical lensshown in FIG. 5;

FIG. 7 presents the lateral color of the camera optical lens shown inFIG. 5;

FIG. 8 presents the field curvature and distortion of the camera opticallens shown in FIG. 5;

FIG. 9 is a schematic diagram of a camera optical lens in accordancewith a third embodiment of the present invention;

FIG. 10 presents the longitudinal aberration of the camera optical lensshown in FIG. 9;

FIG. 11 presents the lateral color of the camera optical lens shown inFIG. 9;

FIG. 12 presents the field curvature and distortion of the cameraoptical lens shown in FIG. 9.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

As referring to FIG. 1, the present invention provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 of embodiment 1 of thepresent invention, the camera optical lens 10 comprises 7 lenses.Specifically, from the object side to the image side, the camera opticallens 10 comprises in sequence: an aperture S1, a first lens L1, a secondlens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixthlens L6 and a seventh lens L7. Optical element like optical filter GFcan be arranged between the seventh lens L7 and the image surface Si.The first lens L1 is made of plastic material, the second lens L2 ismade of plastic material, the third lens L3 is made of glass material,the fourth lens L4 is made of plastic material, the fifth lens L5 ismade of plastic material, the sixth lens L6 is made of glass material,the seventh lens L7 is made of plastic material.

Here, the focal length of the whole camera optical lens 10 is defined asf, the focal length of the first lens is defined as f1. The cameraoptical lens 10 further satisfies the following condition:−10≤f1/f≤−3.1, which fixes the negative refractive power of the firstlens L1. If the upper limit of the set value is exceeded, although itbenefits the ultra-thin development of lenses, but the negativerefractive power of the first lens L1 will be too strong, problem likeaberration is difficult to be corrected, and it is also unfavorable forwide-angle development of lens. On the contrary, if the lower limit ofthe set value is exceeded, the negative refractive power of the firstlens L1 becomes too weak, it is then difficult to develop ultra-thinlenses. Preferably, the following condition shall be satisfied,−9.95≤f1/f≤−3.2.

The refractive index of the third lens L3 is n3. Here the followingcondition should satisfied: 1.7≤n3≤2.2. This condition fixes therefractive index of the third lens L3, and refractive index within thisrange benefits the ultra-thin development of lenses, and it alsobenefits the correction of aberration. Preferably, the followingcondition shall be satisfied, 1.71≤n3≤2.1.

The focal length of the sixth lens L6 is defined as f6, and the focallength of the seventh lens L7 is defined as f7. The camera optical lens10 should satisfy the following condition: 1≤f6/f7≤10, which fixes theratio between the focal length f6 of the sixth lens L6 and the focallength f7 of the seventh lens L7. A ratio within this range caneffectively reduce the sensitivity of lens group used in camera andfurther enhance the imaging quality. Preferably, the following conditionshall be satisfied, 1.8≤f6/f7≤9.95.

The curvature radius of the object side surface of the first lens L1 isdefined as R1, the curvature radius of the image side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 furthersatisfies the following condition: 2≤(R1+R2)/(R1−R2)≤10, which fixes theshape of the first lens L1, when the value is beyond this range, withthe development into the direction of ultra-thin and wide-angle lenses,problem like aberration of the off-axis picture angle is difficult to becorrected. Preferably, the condition 2.1≤(R1+R2)/(R1−R2)≤8.8 shall besatisfied.

The refractive index of the sixth lens L6 is n6. Here the followingcondition should satisfied: 1.7≤n6≤2.2. This condition fixes therefractive index of the sixth lens L6, and refractive index within thisrange benefits the ultra-thin development of lenses, and it alsobenefits the correction of aberration. Preferably, the followingcondition shall be satisfied, 1.71≤n6≤2.1.

When the focal length of the camera optical lens 10 of the presentinvention, the focal length of each lens, the refractive power of therelated lens, and the total optical length, the thickness on-axis andthe curvature radius of the camera optical lens satisfy the aboveconditions, the camera optical lens 10 has the advantage of highperformance and satisfies the design requirement of low TTL.

In this embodiment, the object side surface of the first lens L1 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has a negativerefractive power.

The thickness on-axis of the first lens L1 is defined as d1. Thefollowing condition: 0.10≤d1≤0.30 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.16≤d1≤0.24 shall besatisfied.

In this embodiment, the object side surface of the second lens L2 is aconvex surface relative to the proximal axis, its image side surface isa convex surface relative to the proximal axis, and it has a positiverefractive power.

The focal length of the whole camera optical lens 10 is f, the focallength of the second lens L2 is f2. The following condition should besatisfied: 0.48≤f2/f≤1.47. When the condition is satisfied, the positiverefractive power of the second lens L2 is controlled within reasonablescope, the spherical aberration caused by the first lens L1 which hasnegative refractive power and the field curvature of the system then canbe reasonably and effectively balanced. Preferably, the condition0.77≤f2/f≤1.18 should be satisfied.

The curvature radius of the object side surface of the second lens L2 isdefined as R3, the curvature radius of the image side surface of thesecond lens L2 is defined as R4. The following condition should besatisfied: −1.90≤(R3+R4)/(R3−R4)≤−0.29, which fixes the shape of thesecond lens L2 and can effectively correct aberration of the cameraoptical lens. Preferably, the following condition shall be satisfied,−1.19≤(R3+R4)/(R3−R4)≤−0.37.

The thickness on-axis of the second lens L2 is defined as d3. Thefollowing condition: 0.2≤d3≤0.70 should be satisfied. When the conditionis satisfied, it is beneficial for realization of the ultra-thin lens.Preferably, the condition 0.33≤d3≤0.56 shall be satisfied.

In this embodiment, the object side surface of the third lens L3 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has a negativerefractive power.

The focal length of the whole camera optical lens 10 is f, the focallength of the third lens L3 is f3. The following condition should besatisfied: −707.74≤f3/f≤−4.90. When the condition is satisfied, thefield curvature of the system can be reasonably and effectively balancedfor further improving the image quality. Preferably, the condition−442.34≤f3/f≤−6.13 should be satisfied.

The curvature radius of the object side surface of the third lens L3 isdefined as R5, the curvature radius of the image side surface of thethird lens L3 is defined as R6. The following condition should besatisfied: 5.74≤(R5+R6)/(R5−R6)≤70.58, which is beneficial for theshaping of the third lens L3, and bad shaping and stress generation dueto extra large curvature of surface of the third lens L3 can be avoided.Preferably, the following condition shall be satisfied,9.19≤(R5+R6)/(R5−R6)≤56.47.

The thickness on-axis of the third lens L3 is defined as d5. Thefollowing condition: 0.10≤d5≤0.32 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.16≤d5≤0.26 shall besatisfied.

In this embodiment, the object side surface of the fourth lens L4 is aconvex surface relative to the proximal axis, its image side surface isa concave surface relative to the proximal axis, and it has a negativerefractive power.

The focal length of the whole camera optical lens 10 is f, the focallength of the fourth lens L4 is f4. The following condition should besatisfied: −8.19≤f4/f≤−1.31. When the condition is satisfied, theappropriate distribution of refractive power makes it possible that thesystem has better imaging quality and lower sensitivity. Preferably, thecondition −5.12≤f4/f≤−1.64 should be satisfied.

The curvature radius of the object side surface of the fourth lens L4 isdefined as R7, the curvature radius of the image side surface of thefourth lens L4 is defined as R8. The following condition should besatisfied: 0.82≤(R7+R8)/(R7−R8)≤5.81, which fixes the shaping of thefourth lens L4. When beyond this range, with the development into thedirection of ultra-thin and wide-angle lens, the problem like chromaticaberration is difficult to be corrected. Preferably, the followingcondition shall be satisfied, 1.31≤(R7+R8)/(R7−R8)≤4.65.

The thickness on-axis of the fourth lens L4 is defined as d7. Thefollowing condition: 0.24≤d7≤0.75 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.38≤d7≤0.60 shall besatisfied.

In this embodiment, the object side surface of the fifth lens L5 is aconcave surface relative to the proximal axis, the image side surface ofthe fifth lens L5 is a convex surface relative to the proximal axis. Thefifth lens L5 has a positive refractive power.

The focal length of the whole camera optical lens 10 is f, the focallength of the fifth lens L5 is f5. The following condition should besatisfied: 0.21≤f5/f≤0.76, which can effectively make the light angle ofthe camera lens flat and reduces the tolerance sensitivity. Preferably,the condition 0.33≤f5/f≤0.61 should be satisfied.

The curvature radius of the object side surface of the fifth lens L5 isdefined as R9, the curvature radius of the image side surface of thefifth lens L5 is defined as R10. The following condition should besatisfied: 0.58≤(R9+R10)/(R9−R10)≤2.34, which fixes the shaping of thefifth lens L5. When beyond this range, with the development into thedirection of ultra-thin and wide-angle lens, the problem like chromaticaberration is difficult to be corrected. Preferably, the followingcondition shall be satisfied, 0.93≤(R9+R10)/(R9−R10)≤1.87.

The thickness on-axis of the fifth lens L5 is defined as d9. Thefollowing condition: 0.51≤d9≤1.91 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.82≤d9≤1.53 shall besatisfied.

In this embodiment, the object side surface of the sixth lens L6 is aconvex surface relative to the proximal axis, the image side surface ofthe sixth lens L6 is a concave surface relative to the proximal axis.The sixth lens L6 has a negative refractive power.

The focal length of the whole camera optical lens 10 is f, the focallength of the sixth lens L6 is f6. The following condition should besatisfied: −11.00≤f6/f≤−0.95. When the condition is satisfied, theappropriate distribution of refractive power makes it possible that thesystem has better imaging quality and lower sensitivity. Preferably, thecondition −6.87≤f6/f≤−1.19 should be satisfied.

The curvature radius of the object side surface of the sixth lens L6 isdefined as R11, the curvature radius of the image side surface of thesixth lens L6 is defined as R12. The following condition should besatisfied: 0.69≤(R11+R12)/(R11−R12)≤3.67, which fixes the shaping of thesixth lens L6. When beyond this range, with the development into thedirection of ultra-thin and wide-angle lens, the problem like chromaticaberration is difficult to be corrected. Preferably, the followingcondition shall be satisfied, 1.11≤(R11+R12)/(R11−R12)≤2.94.

The thickness on-axis of the sixth lens L6 is defined as d11. Thefollowing condition: 0.10≤d11≤0.65 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.16≤d11≤0.52 shall besatisfied.

In this embodiment, the object side surface of the seventh lens L7 is aconvex surface relative to the proximal axis, the image side surface ofthe seventh lens L7 is a concave surface relative to the proximal axis,and it has a negative refractive power.

The focal length of the whole camera optical lens 10 is f, the focallength of the seventh lens L7 is f7. The following condition should besatisfied: −1.21≤f7/f≤−0.35. When the condition is satisfied, theappropriate distribution of refractive power makes it possible that thesystem has better imaging quality and lower sensitivity. Preferably, thecondition −0.75≤f7/f≤−0.44 should be satisfied.

The curvature radius of the object side surface of the seventh lens L7is defined as R13, the curvature radius of the image side surface of theseventh lens L7 is defined as R14. The following condition should besatisfied: 0.62≤(R13+R14)/(R13−R14)≤2.20, which fixes the shaping of theseventh lens L7. When beyond this range, with the development into thedirection of ultra-thin and wide-angle lens, the problem like chromaticaberration is difficult to be corrected. Preferably, the followingcondition shall be satisfied, 0.99≤(R13+R14)/(R13−R14)≤1.76.

The thickness on-axis of the seventh lens L7 is defined as d13. Thefollowing condition: 0.10≤d13≤0.31 should be satisfied. When thecondition is satisfied, it is beneficial for realization of theultra-thin lens. Preferably, the condition 0.16≤d13≤0.25 shall besatisfied.

In this embodiment, the total optical length TTL of the camera opticallens 10 is less than or equal to 6.13 mm, it is beneficial for therealization of ultra-thin lenses. Preferably, the total optical lengthTTL of the camera optical lens 10 is less than or equal to 5.86 mm.

In this embodiment, the aperture F number of the camera optical lens 10is less than or equal to 2.37. A large aperture has better imagingperformance. Preferably, the aperture F number of the camera opticallens 10 is less than or equal to 2.32.

With such design, the total optical length TTL of the whole cameraoptical lens 10 can be made as short as possible, thus theminiaturization characteristics can be maintained.

In the following, an example will be used to describe the camera opticallens 10 of the present invention. The symbols recorded in each exampleare as follows. The unit of distance, radius and center thickness is mm.

TTL: Optical length (the distance on-axis from the object side surfaceof the first lens L1 to the image surface).

Preferably, inflexion points and/or arrest points can also be arrangedon the object side surface and/or image side surface of the lens, sothat the demand for high quality imaging can be satisfied, thedescription below can be referred for specific implementable scheme.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the following, the unitof the focal length, distance, radius and center thickness is mm.

The design information of the camera optical lens 10 in the firstembodiment of the present invention is shown in the tables 1 and 2.

TABLE 1 R d nd νd S1 ∞ d0= −0.076 R1 2.219 d1= 0.200 nd1 1.6713 ν1 19.24R2 1.703 d2= 0.202 R3 2.078 d3= 0.469 nd2 1.5445 ν2 55.99 R4 −78.497 d4=0.030 R5 2.666 d5= 0.216 nd3 1.9459 ν3 17.98 R6 2.555 d6= 0.491 R7 6.874d7= 0.503 nd4 1.6713 ν4 19.24 R8 4.053 d8= 0.235 R9 −4.175 d9= 1.019 nd51.5352 ν5 56.09 R10 −0.910 d10= 0.020 R11 20.993 d11= 0.430 nd6 1.7292ν6 54.67 R12 8.814 d12= 0.266 R13 7.100 d13= 0.210 nd7 1.5388 ν7 56.07R14 0.980 d14= 0.577 R15 ∞ d15= 0.210 ndg 1.5168 νg 64.17 R16 ∞ d16=0.500

Where:

In which, the meaning of the various symbols is as follows.

S1: Aperture;

R: The curvature radius of the optical surface, the central curvatureradius in case of lens;

R1: The curvature radius of the object side surface of the first lensL1;

R2: The curvature radius of the image side surface of the first lens L1;

R3: The curvature radius of the object side surface of the second lensL2;

R4: The curvature radius of the image side surface of the second lensL2;

R5: The curvature radius of the object side surface of the third lensL3;

R6: The curvature radius of the image side surface of the third lens L3;

R7: The curvature radius of the object side surface of the fourth lensL4;

R8: The curvature radius of the image side surface of the fourth lensL4;

R9: The curvature radius of the object side surface of the fifth lensL5;

R10: The curvature radius of the image side surface of the fifth lensL5;

R11: The curvature radius of the object side surface of the sixth lensL6;

R12: The curvature radius of the image side surface of the sixth lensL6;

R13: The curvature radius of the object side surface of the seventh lensL7;

R14: The curvature radius of the image side surface of the seventh lensL7;

R15: The curvature radius of the object side surface of the opticalfilter GF;

R16: The curvature radius of the image side surface of the opticalfilter GF;

d: The thickness on-axis of the lens and the distance on-axis betweenthe lens;

d0: The distance on-axis from aperture S1 to the object side surface ofthe first lens L1;

d1: The thickness on-axis of the first lens L1;

d2: The distance on-axis from the image side surface of the first lensL1 to the object side surface of the second lens L2;

d3: The thickness on-axis of the second lens L2;

d4: The distance on-axis from the image side surface of the second lensL2 to the object side surface of the third lens L3;

d5: The thickness on-axis of the third lens L3;

d6: The distance on-axis from the image side surface of the third lensL3 to the object side surface of the fourth lens L4;

d7: The thickness on-axis of the fourth lens L4;

d8: The distance on-axis from the image side surface of the fourth lensL4 to the object side surface of the fifth lens L5;

d9: The thickness on-axis of the fifth lens L5;

d10: The distance on-axis from the image side surface of the fifth lensL5 to the object side surface of the sixth lens L6;

d11: The thickness on-axis of the sixth lens L6;

d12: The distance on-axis from the image side surface of the sixth lensL6 to the object side surface of the seventh lens L7;

d13: The thickness on-axis of the seventh lens L7;

d14: The distance on-axis from the image side surface of the seventhlens L7 to the object side surface of the optical filter GF;

d15: The thickness on-axis of the optical filter GF;

d16: The distance on-axis from the image side surface to the imagesurface of the optical filter GF;

nd: The refractive index of the d line;

nd1: The refractive index of the d line of the first lens L1;

nd2: The refractive index of the d line of the second lens L2;

nd3: The refractive index of the d line of the third lens L3;

nd4: The refractive index of the d line of the fourth lens L4;

nd5: The refractive index of the d line of the fifth lens L5;

nd6: The refractive index of the d line of the sixth lens L6;

nd7: The refractive index of the d line of the seventh lens L7;

ndg: The refractive index of the d line of the optical filter GF;

vd: The abbe number;

v1: The abbe number of the first lens L1;

v2: The abbe number of the second lens L2;

v3: The abbe number of the third lens L3;

v4: The abbe number of the fourth lens L4;

v5: The abbe number of the fifth lens L5;

v6: The abbe number of the sixth lens L6;

v7: The abbe number of the seventh lens L7;

vg: The abbe number of the optical filter GF.

Table 2 shows the aspherical surface data of the camera optical lens is10 in the embodiment 1 of the present invention.

TABLE 2 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1 −3.9075E+00 −6.0835E−02 −7.1137E−02   1.8000E−01 −1.3222E−01−7.8738E−02 1.6190E−01 −6.7664E−02 R2 −3.6941E+00 −6.3350E−02−7.8052E−02   1.9875E−01 −1.3801E−01 −6.3222E−02 7.5687E−02 −1.4957E−02R3 −4.3965E+00  3.9513E−02 −8.9263E−02   9.0371E−02  3.2155E−02−1.3597E−01 1.2514E−02 −1.0981E−02 R4 −9.9855E+01 −2.7364E−02−8.2433E−02   2.1623E−01 −1.1166E−01 −1.9204E−01 6.4276E−02  5.0446E−02R5  0.0000E+00 −4.9573E−02 2.7399E−02  4.8965E−02 −1.7986E−02−4.0508E−02 −1.1511E−01   1.2174E−01 R6  0.0000E+00 −6.4230E−024.3529E−02 −4.0805E−02  8.0495E−02 −5.6765E−02 −1.4983E−01   1.3353E−01R7 −8.7088E+01 −1.2691E−01 −2.6544E−02  −3.7482E−02  1.9448E−02 2.1218E−02 −1.9316E−02  −1.7449E−02 R8  4.9783E+00 −9.6482E−029.6065E−04  2.7212E−03  9.3767E−04  2.0564E−03 −1.0636E−03  −1.0945E−04R9  4.0756E−02  1.5506E−02 2.4310E−02 −8.6234E−03 −1.2531E−04 9.4599E−04 7.9801E−06 −1.5480E−04 R10 −3.0378E+00 −7.4430E−023.1617E−02 −1.0895E−03 −5.3100E−04 −9.5737E−05 −2.0989E−05   1.4337E−05R11  7.3396E+01 −4.5101E−03 3.3238E−04 −8.9935E−05 −1.9931E−04 2.3219E−05 5.7107E−06 −1.2217E−06 R12  2.9398E+00 −1.8892E−035.6974E−05 −5.3661E−05  1.9217E−06  1.3715E−06 1.8374E−08 −2.9201E−08R13 −2.7232E+01 −1.1227E−02 −5.1666E−04   8.8904E−05  1.3367E−05 8.2438E−07 −4.1208E−08  −7.3248E−10 R14 −5.7272E+00 −2.4767E−023.5377E−03 −4.7508E−04  1.5285E−05  5.1862E−07 1.2800E−07 −3.9721E−08

Among them, K is a conic index, A4, A6, A8, A10, A12, A14, A16 areaspheric surface indexes.

IH: Image Heighty=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶  (1)

For convenience, the aspheric surface of each lens surface uses theaspheric surfaces shown in the above condition (1). However, the presentinvention is not limited to the aspherical polynomials form shown in thecondition (1).

Table 3 and table 4 show the inflexion points and the arrest pointdesign data of the camera optical lens 10 lens in embodiment 1 of thepresent invention. In which, R1 and R2 represent respectively the objectside surface and image side surface of the first lens L1, R3 and R4represent respectively the object side surface and image side surface ofthe second lens L2, R5 and R6 represent respectively the object sidesurface and image side surface of the third lens L3, R7 and R8 representrespectively the object side surface and image side surface of thefourth lens L4, R9 and R10 represent respectively the object sidesurface and image side surface of the fifth lens L5, R11 and R12represent respectively the object side surface and image side surface ofthe sixth lens L6, R13 and R14 represent respectively the object sidesurface and image side surface of the seventh lens L7. The data in thecolumn named “inflexion point position” are the vertical distances fromthe inflexion points arranged on each lens surface to the optic axis ofthe camera optical lens 10. The data in the column named “arrest pointposition” are the vertical distances from the arrest points arranged oneach lens surface to the optic axis of the camera optical lens 10.

TABLE 3 Inflexion point Inflexion point Inflexion point number position1 position 2 R1 1 0.655 R2 1 0.655 R3 1 0.735 R4 0 R5 0 R6 1 0.765 R7 10.275 R8 1 0.505 R9 2 0.755 1.305 R10 1 1.145 R11 1 1.005 R12 1 2.115R13 2 0.805 2.045 R14 1 0.755

TABLE 4 Arrest point Arrest point Arrest point number position 1position 2 R1 R2 R3 R4 R5 R6 R7 1 0.475 R8 1 0.915 R9 R10 R11 1 1.445R12 R13 1 1.445 R14 1 1.915

FIG. 2 and FIG. 3 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 470 nm, 555 nm and650 nm passes the camera optical lens 10 in the first embodiment. FIG. 4shows the field curvature and distortion schematic diagrams after lightwith a wavelength of 555 nm passes the camera optical lens 10 in thefirst embodiment, the field curvature S in FIG. 4 is a field curvaturein the sagittal direction, T is a field curvature in the meridiandirection.

Table 9 shows the various values of the embodiments 1, 2, 3 and thevalues corresponding with the parameters which are already specified inthe conditions.

As shown in Table 13, the first embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.743 mm, the full vision field image height is 2.994 mm, thevision field angle in the diagonal direction is 76.82°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 2

Embodiment 2 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 5 and table 6 show the design data of the camera optical lens 20in embodiment 2 of the present invention.

TABLE 5 R d nd νd S1 ∞ d0= 0.040 R1 45.918 d1= 0.200 nd1 1.6713 ν1 19.24R2 16.350 d2= 0.224 R3 2.749 d3= 0.409 nd2 1.5445 ν2 55.99 R4 −7.091 d4=0.030 R5 3.270 d5= 0.200 nd3 1.7174 ν3 29.50 R6 2.748 d6= 0.551 R715.446 d7= 0.487 nd4 1.6713 ν4 19.24 R8 3.760 d8= 0.111 R9 −11.606 d9=1.190 nd5 1.5388 ν5 56.07 R10 −0.891 d10= 0.020 R11 20.385 d11= 0.200nd6 1.7550 ν6 51.16 R12 4.056 d12= 0.509 R13 5.186 d13= 0.200 nd7 1.5388ν7 56.07 R14 0.986 d14= 0.488 R15 ∞ d15= 0.210 ndg 1.5168 νg 64.17 R16 ∞d16= 0.500

Table 6 shows the aspherical surface data of each lens of the cameraoptical lens 20 in embodiment 2 of the present invention.

TABLE 6 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1  0.0000E+00 −5.3335E−02  5.8530E−02 −4.1766E−02  1.2591E−02−5.4727E−02  8.1201E−02 −3.4683E−02 R2  1.0373E+02 −7.1714E−02 6.6726E−02  4.8803E−02 −2.1938E−01 8.8879E−02 1.5806E−01 −1.2246E−01 R3−1.2712E+01  1.2311E−02 −2.8859E−02 −9.0768E−03 −9.5635E−02 −1.0126E−01 2.0977E−01 −1.3412E−01 R4 −2.9383E+01 −6.2834E−02 −5.1820E−02 8.2911E−02 −2.0052E−01 2.6789E−02 1.4447E−01 −9.3281E−02 R5  0.0000E+00−4.6594E−02 −5.3396E−02  8.7318E−02 −5.8039E−02 −6.3384E−03  7.1942E−02−3.7008E−02 R6  0.0000E+00 −6.6949E−02 −5.2729E−02  6.3589E−02−2.1619E−02 −3.5322E−02  4.4643E−02 −1.4001E−02 R7 −6.0819E+02−1.1868E−01 −1.5187E−02 −2.2457E−02  2.8332E−02 1.8700E−02 −2.7780E−02  7.1222E−03 R8  5.3086E+00 −1.0495E−01  2.4221E−03  2.8800E−03 6.0483E−04 1.7889E−03 −1.0545E−03   9.6468E−05 R9  2.9149E+01 2.2429E−03  2.2034E−02 −8.7673E−03  1.4783E−04 1.0906E−03 5.9885E−05−1.7821E−04 R10 −3.3565E+00 −6.5769E−02  3.3860E−02 −3.2446E−04−3.5992E−04 −9.1775E−05  −2.8694E−05   5.5194E−06 R11  9.6876E+01−1.7221E−02 −2.3583E−03 −4.4873E−04 −2.5685E−04 2.5184E−05 1.0981E−05 1.2199E−06 R12 −5.5323E+01 −1.6863E−02 −1.4419E−03 −1.5770E−04 1.1664E−05 4.5242E−06 1.0911E−06  2.2626E−07 R13 −2.0900E+02−2.9698E−02  1.2125E−03  2.2371E−04  1.2449E−05 −8.2573E−07 −3.4741E−07  −6.6141E−08 R14 −6.6214E+00 −2.7061E−02  3.4723E−03−3.4705E−04  1.0077E−06 1.0405E−06 2.0722E−07 −3.0127E−08

Table 7 and table 8 show the inflexion points and the arrest pointdesign data of the camera optical lens 20 lens in embodiment 2 of thepresent invention.

TABLE 7 Inflexion point Inflexion point Inflexion point number position1 position 2 R1 1 0.195 R2 1 0.325 R3 1 0.585 R4 0 R5 0 R6 1 0.615 R7 10.205 R8 2 0.515 1.125 R9 2 0.665 1.315 R10 1 0.995 R11 1 0.495 R12 10.595 R13 1 0.405 R14 1 0.705

TABLE 8 Arrest point Arrest point Arrest point number position 1position 2 R1 1 0.355 R2 1 0.645 R3 1 0.805 R4 R5 R6 R7 1 0.345 R8 20.965 1.235 R9 1 1.065 R10 R11 1 0.815 R12 1 1.145 R13 1 0.825 R14 11.825

FIG. 6 and FIG. 7 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 470 nm, 555 nm and650 nm passes the camera optical lens 20 in the second embodiment. FIG.8 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 555 nm passes the camera optical lens 20 inthe second embodiment.

As shown in Table 13, the second embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.651 mm, the full vision field image height is 2.994 mm, thevision field angle in the diagonal direction is 76.94°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

Embodiment 3

Embodiment 3 is basically the same as embodiment 1, the meaning of itssymbols is the same as that of embodiment 1, in the following, only thedifferences are described.

Table 9 and table 10 show the design data of the camera optical lens 30in embodiment 3 of the present invention.

TABLE 9 R d nd νd S1 ∞ d0= 0.040 R1 43.785 d1= 0.200 nd1 1.6713 ν1 19.24R2 16.083 d2= 0.189 R3 2.760 d3= 0.421 nd2 1.5445 ν2 55.99 R4 −7.318 d4=0.030 R5 3.188 d5= 0.209 nd3 1.7174 ν3 29.50 R6 2.678 d6= 0.532 R7 9.869d7= 0.475 nd4 1.6713 ν4 19.24 R8 3.779 d8= 0.127 R9 −10.349 d9= 1.273nd5 1.5388 ν5 56.07 R10 −0.821 d10= 0.020 R11 25.858 d11= 0.200 nd61.9108 ν6 35.25 R12 4.150 d12= 0.457 R13 9.162 d13= 0.200 nd7 1.5388 ν756.07 R14 0.969 d14= 0.464 R15 ∞ d15= 0.210 ndg 1.5168 νg 64.17 R16 ∞d16= 0.500

Table 10 shows the aspherical surface data of each lens of the cameraoptical lens 30 in embodiment 3 of the present invention.

TABLE 10 Conic Index Aspherical Surface Index k A4 A6 A8 A10 A12 A14 A16R1  0.0000E+00 −5.6554E−02  6.5815E−02 −4.1134E−02  5.8874E−03−4.9396E−02  9.0729E−02 −4.4304E−02 R2  6.9003E+01 −7.6686E−02 9.1840E−02  3.5162E−02 −2.2472E−01 1.0575E−01 1.7026E−01 −1.4231E−01 R3−1.3978E+01  1.9824E−02 −1.9725E−02 −1.4842E−03 −8.7673E−02 −8.3678E−02 2.2685E−01 −1.5445E−01 R4 −2.3147E+01 −6.4280E−02 −5.2570E−02 9.9307E−02 −1.8270E−01 2.3935E−02 1.2654E−01 −8.5703E−02 R5  0.0000E+00−5.1010E−02 −5.2093E−02  8.7148E−02 −6.4771E−02 −1.1827E−02  7.1724E−02−3.2182E−02 R6  0.0000E+00 −6.5863E−02 −4.8318E−02  5.3123E−02−2.4709E−02 −3.4840E−02  4.6690E−02 −1.3266E−02 R7 −1.7417E+02−1.1458E−01 −1.3229E−02 −2.2280E−02  2.6071E−02 1.5359E−02 −2.9026E−02  1.1086E−02 R8  5.2298E+00 −1.0506E−01  2.3815E−03  2.9972E−03 6.9637E−04 1.7775E−03 −9.7191E−04   1.4697E−04 R9  2.6940E+01 1.9906E−03  2.2443E−02 −8.5675E−03  1.5043E−04 1.0429E−03 6.0207E−05−1.7069E−04 R10 −3.4846E+00 −6.5714E−02  3.3344E−02 −4.9838E−04−4.0351E−04 −1.0445E−04  −2.8192E−05   6.1658E−06 R11  1.2550E+02−1.7111E−02 −1.4576E−03 −3.4154E−04 −2.5163E−04 2.3494E−05 1.0665E−05 1.0508E−06 R12 −7.0657E+01 −1.6635E−02 −1.8045E−03 −1.5464E−04 1.9158E−05 6.3431E−06 1.4794E−06  2.9459E−07 R13 −1.3165E+02−4.2519E−02  2.3484E−03  2.8245E−04  1.7048E−05 −2.9079E−07 −2.3431E−07  −8.6070E−08 R14 −6.6032E+00 −3.1889E−02  4.1587E−03−3.4106E−04 −2.1011E−06 6.5375E−07 1.8909E−07 −2.4458E−08

Table 11 and table 12 show the inflexion points and the arrest pointdesign data of the camera optical lens 30 lens in embodiment 3 of thepresent invention.

TABLE 11 Inflexion point Inflexion point Inflexion point number position1 position 2 R1 1 0.195 R2 1 0.325 R3 1 0.625 R4 0 R5 2 0.675 0.805 R6 10.615 R7 1 0.255 R8 2 0.515 1.105 R9 2 0.695 1.315 R10 1 1.005 R11 20.445 1.795 R12 2 0.565 1.885 R13 2 0.405 2.065 R14 1 0.675

TABLE 12 Arrest point Arrest point Arrest point number position 1position 2 R1 1 0.355 R2 1 0.755 R3 1 0.845 R4 R5 R6 R7 1 0.425 R8 20.955 1.195 R9 1 1.115 R10 R11 1 0.745 R12 1 1.105 R13 1 0.705 R14 11.755

FIG. 10 and FIG. 11 show the longitudinal aberration and lateral colorschematic diagrams after light with a wavelength of 470 nm, 555 nm and650 nm passes the camera optical lens 30 in the third embodiment. FIG.12 shows the field curvature and distortion schematic diagrams afterlight with a wavelength of 555 nm passes the camera optical lens 30 inthe third embodiment.

As shown in Table 13, the third embodiment satisfies the variousconditions.

In this embodiment, the pupil entering diameter of the camera opticallens is 1.653 mm, the full vision field image height is 2.994 mm, thevision field angle in the diagonal direction is 76.92°, it haswide-angle and is ultra-thin, its on-axis and off-axis chromaticaberrations are fully corrected, and it has excellent opticalcharacteristics.

TABLE 13 Embodiment Embodiment Embodiment 1 2 3 f 3.834 3.796 3.801 f1−12.836 −37.574 −37.630 f2 3.713 3.680 3.724 f3 −1356.714 −28.411−27.947 f4 −15.701 −7.459 −9.331 f5 1.955 1.717 1.575 f6 −21.082 −6.718−5.424 f7 −2.129 −2.289 −2.022 f6/f7 9.900 2.934 2.682 (R1 + R2)/(R1 −R2) 7.612 2.106 2.161 (R3 + R4)/(R3 − R4) −0.948 −0.441 −0.452 (R5 +R6)/(R5 − R6) 47.056 11.528 11.485 (R7 + R8)/(R7 − R8) 3.873 1.643 2.241(R9 + R10)/(R9 − R10) 1.558 1.166 1.172 (R11 + R12)/(R11 − R12) 2.4481.497 1.382 (R13 + R14)/(R13 − R14) 1.320 1.469 1.237 f1/f −3.348 −9.898−9.900 f2/f 0.968 0.969 0.980 f3/f −353.870 −7.484 −7.353 f4/f −4.095−1.965 −2.455 f5/f 0.510 0.452 0.414 f6/f −5.499 −1.770 −1.427 f7/f−0.555 −0.603 −0.532 d1 0.200 0.200 0.200 d3 0.469 0.409 0.421 d5 0.2160.200 0.209 d7 0.503 0.487 0.475 d9 1.019 1.190 1.273 d11 0.430 0.2000.200 d13 0.210 0.200 0.200 Fno 2.200 2.300 2.300 TTL 5.577 5.529 5.508d7/TTL 0.090 0.088 0.086 n1 1.6713 1.6713 1.6713 n2 1.5445 1.5445 1.5445n3 1.9459 1.7174 1.7174 n4 1.6713 1.6713 1.6713 n5 1.5352 1.5388 1.5388n6 1.7292 1.7550 1.9108 n7 1.5388 1.5388 1.5388

It is to be understood, however, that even though numerouscharacteristics and advantages of the present exemplary embodiments havebeen set forth in the foregoing description, together with details ofthe structures and functions of the embodiments, the disclosure isillustrative only, and changes may be made in detail, especially inmatters of shape, size, and arrangement of parts within the principlesof the invention to the full extent indicated by the broad generalmeaning of the terms where the appended claims are expressed.

What is claimed is:
 1. A camera optical lens comprising, from an objectside to an image side in sequence: a first lens, a second lens, a thirdlens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens;wherein the first lens has a negative refractive power, the second lenshas a positive refractive power, the third lens has a negativerefractive power, the fourth lens has a negative refractive power, thefifth lens has a positive refractive power, the sixth lens has anegative refractive power, the seventh lens has a negative refractivepower; the camera optical lens satisfies the following conditions:−10≤f1/f≤−3.1;1.7≤n3≤2.2;1.7≤n6≤2.2;1≤f6/f7≤10;2≤(R1+R2)/(R1−R2)≤10; where f: a focal length of the optical cameralens; f1: a focal length of the first lens; f6: a focal length of thesixth lens; f7: a focal length of the seventh lens; n3: a refractiveindex of the third lens; n6: a refractive index of the sixth lens; R1: acurvature radius of object side surface of the first lens; R2: acurvature radius of image side surface of the first lens.
 2. The cameraoptical lens as described in claim 1 further satisfying the followingconditions:−9.95 ≤f1/f≤−3.2;1.85≤f6/f7≤9.95;1.71 ≤n3 ≤2.1;1.71 ≤n6≤2.1;2.1≤(R1+R2)/(R1 −R2)≤8.8.
 3. The camera optical lens as described inclaim 1, wherein the first lens is made of plastic material, the secondlens is made of plastic material, the third lens is made of glassmaterial, the fourth lens is made of plastic material, the fifth lens ismade of plastic material, the sixth lens is made of glass material, theseventh lens is made of plastic material.
 4. The camera optical lens asdescribed in claim 1, wherein the first lens has a convex object sidesurface and a concave image side surface; the camera optical lensfurther satisfies the following conditions:0.10 mm≤d1≤0.30 mm; where d1: a thickness on-axis of the first lens. 5.The camera optical lens as described in claim 4 further satisfying thefollowing conditions:0.16 mm≤d1≤0.24 mm.
 6. The camera optical lens as described in claim 1,wherein the second lens has a convex object side surface and a conveximage side surface; the camera optical lens further satisfies thefollowing conditions:0.48≤f2/f≤1.47l−1.90≤(R3+R4)/(R3−R4)≤−0.29;0.20 mm≤d3≤0.70 mm; where f: the focal length of the camera opticallens; f2: a focal length of the second lens; R3: a curvature radius ofthe object side surface of the second lens; R4: a curvature radius ofthe image side surface of the second lens; d3: a thickness on-axis ofthe second lens.
 7. The camera optical lens as described in claim 6further satisfying the following condition:0.77≤f2/f≤1.18;−1.19≤(R3+R4)/(R3−R4)≤−0.37;0.33 mm≤d≤0.56 mm.
 8. The camera optical lens as described in claim 1,wherein the third lens has a convex object side surface and a concaveimage side surface; wherein the camera optical lens further satisfiesthe following conditions:−707.74≤f3/f≤−4.90;5.74≤(R5+R6)/(R5−R6)≤−70.58;0.10 mm≤d5≤0.32 mm; where f: the focal length of the camera opticallens; f3: a focal length of the third lens; R5: a curvature radius ofthe object side surface of the third lens; R6: a curvature radius of theimage side surface of the third lens; d5: a thickness on-axis of thethird lens.
 9. The camera optical lens as described in claim 8 furthersatisfying the following conditions:−442.34≤f3/f≤−6.13;9.19≤(R5+R6)/(R5−R6)≤56.47;0.16 mm≤d5≤0.26 mm.
 10. The camera optical lens as described in claim 1,wherein the fourth lens has a convex object side surface and a concaveimage side surface; the camera optical lens further satisfies thefollowing conditions:−8.19≤f4/f≤−1.31;0.82≤(R7+R8)/(R7−R8)≤5.81;0.24 mm≤d7≤0.75 mm; where f: the focal length of the camera opticallens; f4: a focal length of the fourth lens; R7: a curvature radius ofthe object side surface of the fourth lens; R8: a curvature radius ofthe image side surface of the fourth lens; d7: a thickness on-axis ofthe fourth lens.
 11. The camera optical lens as described in claim 10further satisfying the following conditions:−5.12≤f4/f≤−1.64;1.31≤(R7+R8)/(R7−R8)≤4.65;0.38 mm≤d7≤0.60 mm.
 12. The camera optical lens as described in claim 1,wherein the fifth lens has a concave object side surface and a conveximage side surface; the camera optical lens further satisfies thefollowing conditions:0.21≤f5/f≤0.76;0.58≤(R9+R10)/(R9−R10)≤2.34;0.51 mm≤d9≤1.91 mm; where f: the focal length of the camera opticallens; f5: a focal length of the fifth lens; R9: a curvature radius ofthe object side surface of the fifth lens; R10: a curvature radius ofthe image side surface of the fifth lens; d9: a thickness on-axis of thefifth lens.
 13. The camera optical lens as described in claim 12 furthersatisfying the following conditions:0.33 ≤f5/f≤0.61;0.93≤(R9+R10)/(R9−R10)≤1.87;0.82 mm≤d9≤1.53 mm.
 14. The camera optical lens as described in claim 1,wherein the sixth lens has a convex object side surface and a concaveimage side surface; the camera optical lens further satisfies thefollowing conditions:−11.00≤f6/f≤−0.95;0.69≤(R11+R12)/(R11−R12)≤3.67;0.10 mm≤d11≤0.65 mm; where f: the focal length of the camera opticallens; f6: the focal length of the sixth lens; R11: a curvature radius ofthe object side surface of the sixth lens; R12: a curvature radius ofthe image side surface of the sixth lens; d11: a thickness on-axis ofthe sixth lens.
 15. The camera optical lens as described in claim 14further satisfying the following conditions:−6.87 ≤f6/f≤−1.19;1.11≤(R11+R12)/(R11−R12)≤2.94;0.16 mm≤d11≤0.52 mm.
 16. The camera optical lens as described in claim1, wherein the seventh lens has a convex object side surface and aconcave image side surface; the camera optical lens further satisfiesthe following conditions:0.62≤(R13+R14)/(R13−R14)≤2.20;−1.21≤f7/f≤−0.350.10 mm≤d13≤0.31 mm; where f: the focal length of the camera opticallens; f7: the focal length of the seventh lens; d13: a thickness on-axisof the seventh lens; R13: a curvature radius of the object side surfaceof the seventh lens; R14: a curvature radius of the image side surfaceof the seventh lens.
 17. The camera optical lens as described in claim16 further satisfying the following conditions:0.99≤(R13+R14)/(R13−R14)≤1.76;−0.75 ≤f7/f≤−0.44;0.16 mm≤d13≤0.25 mm.
 18. The camera optical lens as described in claim1, wherein an total optical length from the object side surface of thefirst lens to the image surface along the optic axis TTL of the cameraoptical lens is less than or equal to 6.13 mm.
 19. The camera opticallens as described in claim 18, wherein the total optical length from theobject side surface of the first lens to the image surface along theoptic axis TTL of the camera optical lens is less than or equal to 5.86mm.
 20. The camera optical lens as described in claim 1, wherein an Fnumber of the camera optical lens is less than or equal to 2.37.
 21. Thecamera optical lens as described in claim 20, wherein the aperture Fnumber of the camera optical lens is less than or equal to 2.32.